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The Interpretable Artificial Neural Network in Vehicle Insurance Claim Fraud Detection Based on Shapley Additive Explanations
Vehicle insurance claim fraud presents a major challenge in the insurance industry, leading to financial losses and increased premiums for policyholders. Traditional fraud detection methods, such as rule-based systems and manual claim assessment, struggle to handle the complexity and growing volume of fraudulent claims. With the advancement of Machine Learning (ML), models such as Artificial Neural Networks (ANNs) have significantly improved fraud detection accuracy. However, a key limitation of existing ML-based methods is their lack of interpretability, making it difficult for insurers to justify fraud detection decisions. To address this issue, this study proposes an interpretable fraud detection framework based on an ANN integrated with Shapley Additive Explanations (SHAP). The framework involves preprocessing insurance claim data, training an ANN for fraud prediction, and applying SHAP to analyze feature importance and provide interpretability. Experimental results demonstrate that the proposed model achieves high accuracy in fraud detection while offering insights into influential features affecting claim decisions. The findings highlight the importance of incorporating explainability into ML-based fraud detection, ensuring transparency and trustworthiness in the insurance industry.
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Supporting Agencies
- Funding: This research was supported by the U.S. National Science Foundation under Grant No. 1563372 and by the National Natural Science Foundation of China under Grant No. 719740361.